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Table of Contents
Abstract
The ThinkSystem Xilinx Alveo U25 25GbE SFP28 2-Port PCIe FPGA Adapter is an advanced programmable network adapter enabling customized hardware acceleration and offload. The U25 programming model supports both high-level network programming abstractions such as HLS and P4, as well compute acceleration frameworks such as Vitis to enable both Xilinx and third-party accelerated applications.
This product guide provides essential presales information to understand the adapter and its key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the Xilinx Alveo U25 adapter and consider its use in IT solutions.
Change History
Changes in the October 31, 2023 update:
- Added the following transceiver - Supported transceivers and cables section:
- ThinkSystem Finisar Dual Rate 10G/25G SR SFP28 Transceiver, 4TC7A88638
Introduction
The ThinkSystem Xilinx Alveo U25 25GbE SFP28 2-Port PCIe FPGA Adapter is an advanced programmable network adapter enabling customized hardware acceleration and offload. The U25 programming model supports both high-level network programming abstractions such as HLS and P4, as well compute acceleration frameworks such as Vitis to enable both Xilinx and third-party accelerated applications.
The following figure shows the ThinkSystem Xilinx Alveo U25 25GbE SFP28 2-Port PCIe FPGA Adapter.
Figure 1. ThinkSystem Xilinx Alveo U25 25GbE SFP28 2-Port PCIe FPGA Adapter
Did you know?
In addition to standard NIC drivers, the U25 adapter also supports Onload kernel bypass to provide both TCP and packet-based APIs for network application acceleration. The Xilinx Onload software accelerates and scales network-intensive applications such as in-memory databases, software load balancers, and web servers. With Onload, data centers can support 400% or more users on their cloud network while delivering improved reliability, enhanced quality of service (QoS) and higher return on investment, without modification to existing applications.
Part number information
The following table shows the part number for the adapter.
| Part number | Feature code | Description |
|---|---|---|
| 4XC7A08317 | BFPU | ThinkSystem Xilinx Alveo U25 25GbE SFP28 2-Port PCIe FPGA Adapter |
The part numbers include the following:
- One Xilinx adapter
- Low-profile (2U) and full-height (3U) adapter brackets
- Documentation
Supported transceivers and cables
The following table lists the supported transceivers.
25Gb transceivers: When installed in the Xilinx Alveo U25 Ethernet adapter, the supported 25Gb transceiver will currently only operate at 25Gb/s speeds.
The following table lists the supported optical cables.
The following table lists the supported direct-attach copper (DAC) cables.
Features
The Xilinx Alveo U25 25GbE SFP28 2-Port PCIe FPGA Adapter offers a number of features, including the following:
A Powerful SmartNIC
The U25 delivers ultra-high throughput, small packet performance and low-latency. The host interface supports standard NIC drivers as well as Onload kernel bypass to provide both TCP and packet-based APIs for network application acceleration. IEEE1588v2 precision timing protocol (PTP) is provided for applications that require synchronized time stamping of packets with single-digit nanosecond accuracy.
A Programmable Fabric
The U25 SmartNIC contains a programmable FPGA handling all network flows. Each flow can be individually delivered to the host and/or streamed in hardware to through bump-in-the-wire network acceleration functions and/or compute acceleration kernels for application processing within the FPGA.
A Platform for Hardware Accelerated Clouds
Cloud service providers are deploying SmartNIC fabrics to achieve virtual switching and micro- segmentation of services that scale linearly with CPU cores and network links.
Technical specifications
The adapter has the following specifications:
- Adapter Hardware
- XtremeScale™ Ethernet Controller
- Zynq® UltraScale+™ XCU25 FPGA
- 2x PCIe Gen 3 x8 (x16 connector in bifurcated mode)
- 2x 10/25 GbE SFP28 cages supporting DAC cables or optical transceivers
- 1x 2GB x 40 DDR4-2400
- 1x 4GB x 72 DDR4-2400
- Acceleration
- SDx Compute Acceleration
- Universal Kernel Bypass
- DPDK Poll Mode Driver - Packet (Cloud, Telco)
- Onload® – TCP (Cloud, Telco, Enterprise)
- Onload®/ TCPDirect - TCP/UDP (Fintech)
- Security
- Tamper resistant adapter – Digitally signed firmware
- Time Synchronization and Hardware Timestamping
- Hardware timestamping for all packets
- On-board Stratum 3 stable oscillator
- Solarflare Software PTP Daemon delivers enhanced stability and clock synchronization accuracy and can be used to synchronize the adapter clock to external time source
- Stateless Offloads
- TCP/UDP Checksum Offload (CSO) TCP Segmentation Offload (TSO) Giant Send Offload (GSO)
- Large Send Offload (LSO) Large Receive Offload (LRO) Receive Side Scaling (RSS)
- Receive Segment Coalescing (RSC)
- Manageability and Remote Boot
- PXE and UEFI
- NC-SI over MCTP SMBus
- PLDM over MCTP SMBus MCTP PCIe VDM
- Management and Utilities
- Solarflare Boot Manager
- Traffic Engineering
- XtremePacket™ Engine for parsing, filtering, and flow steering
- TCP/UDP/IP, MAC, VLAN, RSS filtering Accelerated Receive Flow Steering (ARFS) Transmit Packet Steering
- Virtualization
- Linux Multiqueue
- SR-IOV: 16 physical functions; 240 virtual functions 2048 Guest OS protected vNICs
- VXLAN, tunneling offload; adaptable to custom overlays.
- VLAN and VLAN Q-in-Q Insertion/Stripping
- Ethernet Standards
- IEEE802.3-2018 Ethernet Base Standard
- IEEE 802.3by Ethernet consortium 25 Gigabit Ethernet
- IEEE 802.3ad, 802.1AX Link Aggregation
- IEEE 802.1Q, 802.1P VLAN Tags and Priority IEEE 1588-2008 PTPv2
- Jumbo Frame support (9000 bytes)
Server support
The following tables list the ThinkSystem servers that are compatible.
Operating system support
The adapter supports the operating systems listed in the following table.
Tip: This table is automatically generated based on data from Lenovo ServerProven.
Regulatory approvals
The adapter has the following hardware certifications:
- FCC 47 CFR Part 15 Class A
- UL 94-/V
- CE Mark
- RoHS - Complies with EU directive 2011/65/EU
Physical specifications
The adapter has the following physical specifications:
- Length: 168 mm (6.6 inches)
- Width: 64 mm (2.54 inches)
Operating environment
The adapter is supported in the following environment:
- Temperature:
- Operating: 0°C to 55°C (32°F to 131°F)
- Storage: -40°C to 65°C (-40°F to 149°F)
- Humidity:
- Operating: 10% to 80%
- Storage: 5% to 90%
Warranty
One year limited warranty. When installed in a Lenovo server, this adapter assumes the server’s base warranty and any warranty upgrades.
Related publications
For more information, refer to these documents:
- Networking Options for ThinkSystem Servers:
https://lenovopress.com/lp0765-networking-options-for-thinksystem-servers - ServerProven compatibility
http://www.lenovo.com/us/en/serverproven - Alveo U25 SmartNIC Accelerator Card product page
https://www.xilinx.com/products/boards-and-kits/alveo/u25.html
Trademarks
Lenovo and the Lenovo logo are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. A current list of Lenovo trademarks is available on the Web at https://www.lenovo.com/us/en/legal/copytrade/.
The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo®
ServerProven®
ThinkSystem®
The following terms are trademarks of other companies:
AMD, Alveo™, UltraScale+™, UltraScale™, Vitis™, Xilinx, and Zynq™ are trademarks of Advanced Micro Devices, Inc.
Intel® is a trademark of Intel Corporation or its subsidiaries.
Linux® is the trademark of Linus Torvalds in the U.S. and other countries.
Other company, product, or service names may be trademarks or service marks of others.
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Full Change History
Changes in the October 31, 2023 update:
- Added the following transceiver - Supported transceivers and cables section:
- ThinkSystem Finisar Dual Rate 10G/25G SR SFP28 Transceiver, 4TC7A88638
Changes in the September 17, 2023 update:
- Withdrawn cables are now hidden; click Show Withdrawn Products to view them - Supported transceivers and cables section
Changes in the October 21, 2021 update:
- Correction: 25GbE transceivers, when installed in this adapter, will only operate at 25 Gb/s - Supported transceivers and cables section
Changes in the October 20, 2021 update:
- Added a note that the 25GbE transceivers can operate at 25 Gb/s or 10 Gb/s speeds when installed in a 25GbE adapter - Supported transceivers and cables section
Changes in the March 7, 2021 update:
- The server support tables are now automatically updated - Server support section
Changes in the January 21, 2021 update:
- Added support for the Lenovo 25GBase-SR SFP28 Transceiver - Supported cables and transceivers section
Changes in the January 13, 2021 update:
- Added table of supported operating systems, generated from ServerProven - Operating system support section
First published: November 24, 2020
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